SUPERIOR IMAGE QUALITY - Extends your lens port by 1.2', optimizing the distance between the lens and dome for sharper, clearer underwater photos with your Olympus 12-40mm f/2.8 ED PRO Lens. ENHANCED DURABILITY - Crafted from robust acetyl plastic, this lens port extension withstands the rigors of underwater photography, ensuring long-lasting performance and protection for your valuable equipment. INCREASED WATER RESISTANCE - Provides a secure and watertight seal, preventing water from reaching your camera and lens, giving you peace of mind during every dive and protecting your investment. SIMPLE AND SECURE USAGE - Easy to install with spare securing screws included, this extension ensures a stable and reliable connection between your lens and port, making setup quick and hassle-free.